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Impedance control self-calibration of a collaborative robot using kinematic coupling

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Nadeau, Nicholas A., Bonev, Ilian A. et Joubair, Ahmed. 2019. « Impedance control self-calibration of a collaborative robot using kinematic coupling ». Robotics, vol. 8, nº 2.
Compte des citations dans Scopus : 1.

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Abstract

This paper presents a closed-loop calibration approach using impedance control. The process is managed by a data communication architecture based on open-source tools and designed for adaptability. The calibration procedure uses precision spheres and a kinematic coupling standard machine tool components, which are suitable for harsh industrial environments. As such, the required equipment is low cost (approximately $2000 USD), robust, and is quick to set up, especially when compared to traditional calibration devices. As demonstrated through an experimental study and validated with a laser tracker, the absolute accuracy of the KUKA LBR iiwa robot was improved to a maximum error of 0.990 mm, representing a 58.4% improvement when compared to the nominal model. Further testing showed that a traditional calibration using a laser tracker only improved the maximum error by 58 µm over the impedance control approach.

Item Type: Peer reviewed article published in a journal
Professor:
Professor
Bonev, Ilian
Affiliation: Génie des systèmes
Date Deposited: 14 Nov 2019 20:17
Last Modified: 18 Nov 2019 20:06
URI: https://espace2.etsmtl.ca/id/eprint/19784

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